by Sofjan Assauri $11.00
by Dr. Gunarto Suhardi, SH $9.00
by DR. Farida Yusuf Tayibnapis, M.Pd $7.00
by Erman Rajagukguk, S.H $7.00
by Maurice Duverger $7.00
by Drs. Bambang Siswanto, M.A $6.00